Answer:
b
Explanation:
On Earth, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
Answer:
Bio means of life or living things. An example of bio is biography which is the story of a person's life.
Explanation:
My guess would be mRNA or RNA but I'm not too sure about this question, sorry.
